:root {
  --chocolate-cosmos: #5E1823;
  --ivory: #FFFDEF;
  --goldilocks: #F9C379;
  --frozenwater: #BCD6BD;
  --onyx: #0E0E2C;
  --onyx-light: #3E3E56;
  --paper: #f6efe4;
  --panel: rgba(255, 255, 255, 0.42);
  --line: rgba(23, 27, 44, 0.14);
  --shadow: rgba(25, 19, 21, 0.12);
  --font-heading: 'Cormorant SC', Georgia, serif;
  --font-body: 'EB Garamond', Georgia, serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--onyx);
  background: #FFFDEF;
}

img {
  max-width: 100%;
  display: block;
}

button, a {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

#site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(245, 238, 227, 0.74);
  border-bottom: 1px solid rgba(23, 27, 44, 0.08);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  object-fit: contain;
  display: block;
  border-radius: 0;
  background: transparent;
  padding: 0;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 26px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--chocolate-cosmos);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--onyx);
}

.main-nav a {
  position: relative;
  transition: color 0.2s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  transform: scaleX(1);
}

#darkmode {
  border: 1px solid rgba(23, 27, 44, 0.25);
  background: transparent;
  color: var(--onyx);
  border-radius: 999px;
  padding: 8px 18px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

#darkmode:hover {
  background: rgba(94, 24, 35, 0.06);
  transform: translateY(-1px);
}

#intro {
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 28px 20px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 42px;
  align-items: center;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow,
.section-kicker {
  font-family: var(--font-heading);
  font-size: 18px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--chocolate-cosmos);
  margin-bottom: 18px;
}

.hero-copy h1 {
  font-family: var(--font-heading);
  font-size: 72px;
  line-height: 0.88;
  letter-spacing: -0.04em;
  color: var(--chocolate-cosmos);
  margin-bottom: 24px;
}

.intro-lead {
  font-size: 19px;
  line-height: 1.7;
  color: var(--onyx);
  max-width: 560px;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 17px 28px;
  font-size: 18px;
  border-radius: 999px;
  border: 1px solid rgba(94, 24, 35, 0.35);
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.primary-link {
  background: var(--chocolate-cosmos);
  color: var(--goldilocks);
  border-color: var(--chocolate-cosmos);
}

.secondary-link {
  background: transparent;
  color: var(--chocolate-cosmos);
}

.primary-link:hover,
.secondary-link:hover {
  transform: translateY(-2px);
}

.intro-portrait {
  display: flex;
  justify-content: center;
}

.intro-portrait img {
  width: 440px;
  max-width: 100%;
  border-radius: 28px;
  box-shadow: 0 26px 60px rgba(57, 21, 25, 0.16);
}

.stats {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 28px 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(160px, 1fr));
  gap: 18px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px 22px;
  box-shadow: 0 10px 25px var(--shadow);
}

.stat-label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(23, 27, 44, 0.6);
  margin-bottom: 7px;
}

.stat-card strong {
  font-family: var(--font-heading);
  font-size: 38px;
  color: var(--chocolate-cosmos);
  letter-spacing: -0.03em;
}

#projects {
  max-width: 1280px;
  margin: 0 auto;
  padding: 70px 28px 72px;
}

#about {
  margin-top: 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 30px;
}

.section-heading h2 {
  font-family: var(--font-heading);
  font-size: 64px;
  color: var(--chocolate-cosmos);
  letter-spacing: -0.03em;
}

.filter-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 12px;
  width: min(100%, 260px);
}

.cat-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  border: 1px solid rgba(94, 24, 35, 0.2);
  background: rgba(255, 255, 255, 0.6);
  color: var(--chocolate-cosmos);
  border-radius: 999px;
  padding: 10px 18px;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.04em;
}

.cat-label:hover {
  transform: translateY(-1px);
}

.cat-label.active {
  background: var(--chocolate-cosmos);
  border-color: var(--chocolate-cosmos);
  color: var(--goldilocks);
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(94, 24, 35, 0.12);
}

.mindmap {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.project-set {
  display: none;
}

.project-set.visible {
  display: block;
}

.project-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  opacity: 1;
  pointer-events: auto;
  transform: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.project-row + .project-row {
  margin-top: 18px;
}

.project-item,
.project-uxui,
.project-product {
  display: flex;
  align-items: center;
  gap: 16px;
  width: calc(33.333% - 12px);
  min-width: 260px;
  padding: 16px 16px 16px 14px;
  border-radius: 20px;
  border: 1px solid rgba(23, 27, 44, 0.08);
  background: #5E1823;
  box-shadow: 0 10px 24px rgba(23, 27, 44, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.project-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 28px rgba(23, 27, 44, 0.08);
  border-color: rgba(94, 24, 35, 0.18);
}

.project-item img {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 16px;
  flex-shrink: 0;
}

.project-meta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  min-width: 0;
}

.project-name {
  font-family: var(--font-heading);
  font-size: 28px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--goldilocks);
}

.project-tag {
  font-size: 14px;
  color: var(--ivory);
  line-height: 1.4;
}

body.dark-mode .project-item {
  background: var(--chocolate-cosmos);
  border-color: rgba(239, 233, 223, 0.12);
}

body.dark-mode .project-name {
  color: var(--goldilocks);
}

body.dark-mode .project-tag {
  color: var(--ivory);
}

.about-panel {
  max-width: 1280px;
  margin: 0 auto 72px;
  padding: 36px 32px;
  background: linear-gradient(135deg, rgba(94, 24, 35, 0.96), rgba(128, 61, 43, 0.88));
  border-radius: 30px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 26px;
  color: var(--ivory);
}

.about-copy h3 {
  font-family: var(--font-heading);
  font-size: 54px;
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  color: var(--ivory);
}

.about-copy p {
  font-size: 19px;
  line-height: 1.7;
  color: var(--ivory);
}

.about-note {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  min-height: 100%;
}

.about-visual {
  width: 100%;
  max-width: 260px;
  height: auto;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

#download {
  background: var(--chocolate-cosmos);
  color: var(--ivory);
  text-align: center;
  padding: 74px 28px 88px;
}

#download h2 {
  font-family: var(--font-heading);
  font-size: 58px;
  margin-bottom: 14px;
  color: var(--goldilocks);
}

#download p {
  font-size: 18px;
  color: rgba(255, 253, 239, 0.82);
  margin-bottom: 28px;
}

#download-btn {
  background: transparent;
  border: 1px solid rgba(255, 253, 239, 0.55);
  color: var(--ivory);
  border-radius: 999px;
  padding: 14px 28px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

#download-btn:hover {
  background: var(--ivory);
  color: var(--chocolate-cosmos);
  transform: translateY(-2px);
}

#site-footer {
  background: #3a1017;
  color: var(--ivory);
  padding: 34px 28px 42px;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.footer-link {
  position: relative;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 13px;
  opacity: 0.92;
}

.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.footer-link:hover::after {
  transform: scaleX(1);
}

.footer-copy {
  color: rgba(255, 253, 239, 0.7);
  font-size: 15px;
}

body.dark-mode {
  background: var(--chocolate-cosmos);
  color: var(--ivory);
}

body.dark-mode #site-header {
  background: rgba(94, 24, 35, 0.82);
  border-bottom-color: rgba(255, 253, 239, 0.12);
}

body.dark-mode .brand-name,
body.dark-mode .hero-copy h1,
body.dark-mode .eyebrow,
body.dark-mode .section-heading h2,
body.dark-mode .stat-card strong,
body.dark-mode .about-copy h3,
body.dark-mode #download h2,
body.dark-mode .project-name,
body.dark-mode .cat-label.active {
  color: var(--chocolate-cosmos);
}

body.dark-mode .main-nav,
body.dark-mode #darkmode,
body.dark-mode .intro-lead,
body.dark-mode .stat-label,
body.dark-mode .about-copy p,
body.dark-mode .about-note p,
body.dark-mode #download p,
body.dark-mode .project-tag,
body.dark-mode .footer-copy {
  color: var(--onyx);
}

body.dark-mode .primary-link {
  background: var(--ivory);
  color: var(--chocolate-cosmos);
  border-color: var(--ivory);
}

body.dark-mode #darkmode {
  border-color: rgba(255, 253, 239, 0.25);
  color: var(--ivory);
}

body.dark-mode .cat-label,
body.dark-mode .project-item,
body.dark-mode .project-uxui,
body.dark-mode .project-product {
  background: var(--ivory);
  border-color: rgba(23, 27, 44, 0.08);
  color: var(--onyx);
}

body.dark-mode .cat-label {
  color: var(--chocolate-cosmos);
}

body.dark-mode .cat-label.active {
  background: var(--ivory);
  border-color: var(--ivory);
  font-weight: 700;
}

body.dark-mode .project-name {
  color: var(--goldilocks);
}

body.dark-mode .project-tag {
  color: var(--ivory);
}

body.dark-mode .about-panel {
  background: var(--chocolate-cosmos);
}

body.dark-mode #download {
  background: var(--chocolate-cosmos);
}

body.dark-mode #download h2 {
  color: var(--goldilocks);
}

body.dark-mode #download-btn {
  background: var(--ivory);
  border-color: var(--ivory);
  color: var(--onyx);
}

body.dark-mode #download-btn:hover {
  background: var(--ivory);
  color: var(--chocolate-cosmos);
}

body.dark-mode #site-footer {
  background: var(--chocolate-cosmos);
}

body.dark-mode .footer-link {
  color: var(--ivory);
}

body.dark-mode .about-copy h3,
body.dark-mode .about-copy p,
body.dark-mode .about-note {
  color: var(--ivory);
}

@media (max-width: 900px) {
  .header-inner,
  .section-heading,
  .about-panel {
    grid-template-columns: 1fr;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }

  .header-inner {
    justify-content: center;
    text-align: center;
  }

  .main-nav {
    order: 3;
    width: 100%;
    justify-content: center;
  }

  #intro,
  .about-panel {
    grid-template-columns: 1fr;
  }

  .section-heading {
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding: 16px 18px;
  }

  .brand-name {
    letter-spacing: 0.04em;
    font-size: 19px;
  }

  .main-nav {
    gap: 14px;
    font-size: 12px;
  }

  #intro,
  #projects,
  .about-panel,
  .stats {
    padding-left: 18px;
    padding-right: 18px;
  }

  .project-row {
    justify-content: center;
  }

  .project-btn {
    min-width: 150px;
    max-width: none;
    flex-basis: 220px;
  }
}

.footer-link:hover {
  border-bottom-color: var(--ivory);
}

.footer-copy {
  font-size: 14px;
  opacity: 0.6;
  font-style: italic;
}

/* ---- DARK MODE ---- */
body.dark-mode {
  --chocolate-cosmos: #FFFDEF;
  --ivory: #550C18;
}

/* ---- RESPONSIVE: MOBILE ---- */
@media (max-width: 768px) {

  /* Header */
  #site-header {
    padding: 14px 16px;
    justify-content: space-between;
  }

  #site-header h1 {
    font-size: 26px;
  }

  #darkmode {
    position: static;
    font-size: 13px;
    padding: 5px 12px;
  }

  /* Intro: stack portrait above text */
  #intro {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 36px 24px;
    gap: 24px;
  }

  .intro-portrait img {
    width: 160px;
  }

  .intro-text {
    max-width: 100%;
  }

  .intro-text p {
    text-align: left;
  }

  /* Projects section */
  #projects {
    padding: 32px 0 40px;
  }

  /* Mindmap: 3-column grid — labels in one row, project rows below */
  .mindmap {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    padding: 0 16px 24px;
  }

  .cat-uxui   { grid-column: 1; grid-row: 1; min-height: 56px; }
  .cat-collab { grid-column: 2; grid-row: 1; min-height: 56px; }
  .cat-product{ grid-column: 3; grid-row: 1; min-height: 56px; }

  #row-1 { grid-column: 1 / 4; grid-row: 2; }
  #row-2 { grid-column: 1 / 4; grid-row: 3; }
  #row-3 { grid-column: 1 / 4; grid-row: 4; }
  #row-4 { grid-column: 1 / 4; grid-row: 5; }

  .project-row {
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 12px;
    min-height: 100px;
  }

  /* Smaller project images */
  .project-btn,
  .project-btn img {
    width: 85px;
    height: 85px;
  }

  /* Download section */
  #download {
    padding: 40px 24px;
  }

  /* Footer */
  #site-footer {
    padding: 32px 24px 20px;
  }

  .footer-links {
    gap: 20px;
  }
}